Improvement in globe-valves



T. 8: J. BARBER. GLOBE VALVE.

No. 61,794. Patented Feb. 5, 1867 got-m gist gaunt gm.

THOMAS AN D JOHN BARBER, OF BROOKLYN, 'NEW YORK. Warm No. 61,794, dated ma 5,1867.

IMPBOVEMIBRT IN GLOBE-VALVES.

TO ALL WHOM IT MAY concerns:

Be it known that we, Tnomns Bananaand Jonn Banana, ofBrookly'n, in the county of Kings, and State of New York, have invented a new and useful Improvement in Valve-Cock; and we do hereby declare that the following is a full, clear, and exact description-thereof, which will enable others skilled in the art to make and use the same, reference beinghad to the accompanying drawings, forming part of this specification. r

' My invention consists in so constructing and arrangingthe parts of a valve 'tobe used for steam, water, or gas, that no packing shall be required to keep the cock tight at all times when in use, as will be hereinafter described;

The drawing represents a longitudinal section of the cock. A is the shell or body of thevalve-cock'; Bis

. the valve-seat; G is-the valve; Dis the salve-stem; E is a piece screwed into the shell as a guide, etc. F is 'a'.

cap-piece, cons-like in shape; G is a conical socket. piece, which screws on tothe valve-stein.- The wheel H,

' by which the valve is operated, isattached' to this piece. The screw-thread in the neck of the shell supports the f working portions of the cook. The piece E which guides the -valve, isattached to the shell by a screw. There is a channel or seat cut in this piece from the recess at z tothelower end, and there isa feather, j, on the valvestem which fits into this seat or channel. This prevents the, valve and stem from turning when the socket portion. G is screwed onto it. The lower portion of the piece E acts as a guide to keep the valve' in place, while 'in' the upper end of it there is 'a' recess, 71., in. which there is a spiral spring, ,0. 'The socket G is confined by the conical-shaped cap 13'. This cap is screwed into the neck of the shell, 'as seen in the drawing; its interior portien encloses the sqcketG-and forms a tight ground joint. The tension of the spiral spring okeeps the socket G always pressing upwards or into the cap 1 and this being a. tapering ground joint, it must always be a tight joint, from the fact that nsing the cock, instead of wearing it loose and destroying the joint, as in common cocks,

only keeps the joint perfect, and, if anything, improving it the more it is used; It will thus be seen that we dispense with all packing, and thatour joint is formed entirely by'the contact ofmetallid surfaces, which is I allowed to be the most perfect and durable joint that can be made. The valve is raised by screwing the socket G on to the stem D, and closed by an opposite motion. In the upper portion. of the valve-stem G there is'an oil hole,'p. There may be an oil' cup attached to the top of the stem, but in this example of ,our invention the orifice is closed by a screw, 8. By dropping oil into this hole the valve-stem is thoroughly lubricated without any further trouble. V v i This invention is designed as an improvement upon a similar invention, for which Letters Patent of the United States, dated the 13th daj of June, 1865, were granted to us. In our present invention we claim to have obviated all the objections which could be formed against our former one.

We do not. claim constructing a valve-cock-and keeping-the joints tight without elastic packing.

.Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is- 1. The combination of the cap F. be socket G,'-a1id the valve-stem D, constructed and arranged sub'stantially as described.

2. We claim the guide-piece E, with the chamber and with the feather-seat at j, substantially as set forth. 8. We claim the spiral spring 0, in combination with the guide-piece E, and the socket G, substantially as described.

4. We claim the lubricating hole 11, with the tapering socket G, substantially as herein shown and described. i I THOM AS BARBER,

JOHN BARBER.

Witnesses:

Wu. F. McNamara, Aux. F. Boss'ars. 

